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Korolek [52]
2 years ago
10

I need help plssssss

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
5 0
Substitute the values given.
-2-3(2) then solve
Your answer should be -8
You might be interested in
Need math help pls!!
SVEN [57.7K]

Answer:

32

Step-by-step explanation:

The facts we have are the height of the small lighthouse is 8, and the base is 2.5. The base of the big lighthouse is 10.

The factor between the base of the big lighthouse and small lighthouse is 4 (10/2.5).

If we apply this to the height, 8x4 = 32

4 0
3 years ago
A local company manufactures netbook computers. Their profit function is given by this equation: y equal minus x to the power of
r-ruslan [8.4K]
The equation described above can also be written as,
                    y = -x² + 100x + 4000
To get the number of notebooks that will give them the maximum profit, we derive the equation and equate to zero.
                  dy/dx = -2x + 100 = 0
The value of x from the equation is 50. Then, we substitute 50 to the original equation to get the profit. 
                   y = -(50^2) + 100(50) + 4000 = 6500
Thus, the maximum profit that the company makes is $6,500/day. 

8 0
3 years ago
Find the value of r so the line that passes through each pair of points has the given slope.
3241004551 [841]

Answer:

r = 1

Step-by-step explanation:

slope = change in y / change in x, so:

change in y / change in x  = 2/3

5 - r / 7 - 1 = 2/3

5 - r / 6 = 2/3

\frac{5-r}{6}=\frac{2}{3}

now solve this equation.

first, multiply both sides by 6 to get rid of the fraction:

5 - r = 4

subtract 5 from both sides

-r=-1

multiply both sides by -1

r=1

7 0
3 years ago
The area of a living room is 24 square yards if the width is 12 feet what is the length of the living room in yards ?
love history [14]
To work out what the other side is that you times 12 to get to 24 you would do: 24 divided by 12 equals 2 therefore you would do 12 times 2 to get 24 
4 0
3 years ago
the lengths of the sides of a triangle are in the ratio of 5:3:4. The perimeter of the triangle is 156cm. Find the length of the
lisabon 2012 [21]
The longest side is 5/(5+3+4) = 5/12 of the perimeter, hence
  (5/12)*156 cm = 65 cm . . . . . the length of the longest side
4 0
3 years ago
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